Well point



Jam, 26 1926,

T. F. MGRE WELL'POINT Filed Dec. 8. 1924 .lf/l ......E.1...,. er, s. 93555., l r Xie/...$31. 2....?? :rf-...Y

Y VE TOR Patented Jan. 26, 1926.

:UNITED STATES THOMAS F. MOORE, 0F MORRIS PLAINS, NIMH JERSEY.

WELL POINT.

applicati@ mea December a, '1924. serieu No. 754,617.

T o all whom t may concern: n

Be it known that I,` THOMAS F. MOORE, a citizen of the United States'of America, of Morris Plains, in the county of Morris, in the State of New Jersey, have invented new and useful Improvements in l/Vell Points, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to a device for removing. water seepage from wells, sinkholes, marshes and other water-saturated earth and forconvenienc'e of description may be lturned a well-point.7

In the laying of sewer pipes, water mains and other conduits for public or private purposes it is frequently necessary to dig the trenchesV for receiving such conduits through marsh lands., sink-holes and other watersaturated earth containing more or less silt, quicksand' and other comminuted materials, which, together with the water seepage greatly increase the difficulties encoun-' tered and adds materially to the cost of laying the conduits or other structures which it may be desired to sink to a greater or less depth in such soil, and the main object of this invention is to provide simple and eflicient means for removing the excess water from the soil, as the work progresses, without liability of clogging the pumps with sand and other foreign matter.

In other words, I have sought to provide a special type of well-point capable of being inserted into the water-soaked soil either by driving or into a previously made hole and which is equipped with water-perl vious sand-baiiies or screens and suitable chambers surrounded bythe baies to allow the water to pass from the exterior into the chambers and thence to the pipe to be withdrawn by a suction pump connected to said pipe and at the same time to exclude sand, gravel and other foreign matter from entering the pipe.

Other objects and uses relating to specific parts of the device will be brought out in the following description. v In the drawings:

Figure 1 is a side elevation of a wellpoint embodying the various lfeatures of my invention showing a section of a well and also a suction pump adapted to .the wellpoint for withdrawing the water which may be diverted from the soil to the pipe.

Figure 2 is an enlarged vertical sectional The construction shown in Figures l to i 4f inclusive comprises a suction pipe -1- adapted to be inserted more or less Vertically into the water-containing ysoil to be drained and'its upper end connected to a suction pump A preferably on the surface of the soil or in some other convenient location for withdrawing the water from the soil and depositing it in some remote location where it is prevented from re-entering the soil in which the operation such as trench digging are progressing.

A plate -2- of wood or other suitable material is firmly secured by clamping bolts -3- to the outer face of the pipe and extends laterally some distance to opposite sides thereofas shown more clearly in Figure 4, and also extends longitudinally some distance beyond the receiving end of the pipe as shown in Figures 2 and 3 after which a relatively stiff wire screen -l-, is wrapped around the outer face of the pipe and plate andV across the lower ends thereof and firmly secured to said pipe and plate by any suitable fastening means, as for example.v by nailing it to the wooden plate 2- to form a screen chamber -5- below the lower end o the pipe and around the lower end thereo A flexible screen -6-'- of burlaps or other reasonably strong water pervious material is thenrwrapped spirally around the plate -2- and adjacent portion of the pipe 1- and also around the wire screen '-t, so as to form with the pipe and plate opposite water-receiving chambers -7-, said screens -4- and -6- serving as baffles to prevent entrance'of sand and other foreign matter into the pipe.

That is, the chambers -7- communicate with the chamber 5 so that any water which may surround the well-point at any level throughout the length of the screenedin portion of the pipe or plate will seep through the screens into the chambers -5- and -7- to the exclusion of the sand or other foreign matter, thus permitting the When it is desired to withdraw the water from a pit or trench the well-point constructed in the manner described is inserted into said pit or trench with its lower end in close proximity to the bottom thereof and its upper end connected to a pump as -A- so that by the operation of the pump any water which may seep through the screens 4- or -6- into the chambers -5- or -7- gravitates to the lower open end of the pipe and is then drawn upwardly through the pipe and discharged to a remote locality by the pump -A, the screens serving to prevent the entrance of sand and other solid matter to the pipe while the stilier screen mlat the bottom may allow the well-point to be gradually sunk to the bottom of the pit to displace the solid matter and allow the water to seep into the chambers 5- and -7- for further withdrawal by suction through the pipe -l-.

This device is easily portable and may be withdrawn from one pit or trench and inserted into another pit or trench or into various parts of the same trench where it may be desired to remove water therefrom.

What I claim is:

l. In a well point of the character described, a suction pipe, a plate secured flatwise to one side only of the receiving end of the pipe and extended laterally some distance beyond opposite sides of said pipe and a screen wrapped around said plate and pipe and forming therewith collecting chambers external to the pipe for receiving water passing thru the screen.

2. In a well point of the character described, a suction pipe, a plate secured fiatwise to one side only of the receiving end of the pipe and extending some distance beyond opposite sides and the receiving end of said pipe, and a stift1 wire screen extend ing around and across the lower ends ot' the pipe and plate and secured to said plate.

In a well point of the character described, a suction'pipe, a plate secured liatwise to one side only of the receiving end of the pipe and extending some distance beyond opposite sides and the receiving end of said pipe, and a stil wire screen extending around and across the lower ends of the pipe and plate and securedto said plate, and an additional screen wrapped around the remaining portions of the plate and ad- .jacent portions of the pipe.

In witness whereof I have hereunto set my 

